Methods, Network Nodes and Devices for Communicating at an Unlicensed Frequency Spectrum

4. The method according to claim 1, wherein the received device identity information is a data block cyclic redundancy check scrambled with the device identity.

5. The method according to claim 3, wherein the determining comprises descrambling the received device identity information using the stored device identity and determining that the stored device identity and the received device identity information corresponds to a same device identity when the descrambling is successful.

6. The method according to claim 1, wherein the device identity information is received in a UCI transmission on the uplink communication channel.

10. The network node according to claim 8, wherein the received device identity information is a data block cyclic redundancy check scrambled with the device identity.

14. The method according to claim 12, wherein the sent device identity information is a data block cyclic redundancy check scrambled with the device identity.

15. The method according to claim 12, wherein the device identity information is sent in a UCI transmission on the uplink communication channel.

16. The method according to claim 12, wherein the data comprising the information on the identity of the wireless device is sent before the wireless device has sent any other data communication on the uplink communication channel to the network node after receiving the access grant.

19. The wireless device according to claim 18, further being configured to send an access request message to the network node, requesting access to the unlicensed frequency spectrum provided by the network node.

20. The wireless device according to claim 18, wherein the sent device identity information is a data block cyclic redundancy check scrambled with the device identity.

21. The wireless device according to claim 18, wherein the device identity information is sent in a UCI transmission on the uplink communication channel.

22. The wireless device according to claim 18, wherein the data comprising the information on the identity of the wireless device is sent before the wireless device has sent any other data communication on the uplink communication channel to the network node after receiving the access grant.